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Fasteners Uplifting

“High nails” were found on this Immokalee roof. During roof underlayment installation it’s easy for installers to forget about proper pressure setting on their nail guns. In most cases too many nailers are hooked up to a low volume compressor and the air supply is not sufficient to drive each fastener fully. At time of […]

No Starter Strip

Membrane Starter strip is a narrow strip of membrane at the perimeter designed to seal perimeter flashings and prevent wind uplift. When membrane starter strip is omitted or not installed correctly strong winds have an opportunity to lift the first row of membrane and cause the “domino effect”. This has led to entire roofs being […]

Flat Tie-In not Sealed Properly

The junction between your pitch roof and the flat roof is called the “tie-in”. This area is specifically important because there are two different roofing materials joining. This Fort Myers Beach roof shows evidence that the tie-in area is not sealed properly. It is also very important that the two roof systems have the correct […]

Backwater Laps

When installing a roof system it is important to always start at the lowest point and proceed upward toward the roof’s peak. This ensures that each layer of materials overlaps the previous. Even on flat roofs, this principle is important. As water travels, on a pitch or on a flat roof, if two seams are […]

Flashing Rusting

Steel metal flashings exposed to the elements can rust over time. Today’s flashings are made of galvanized metal, a process that protects the steel core from rusting. Rust cannot be simply sealed over, as it will continue to grow as seen on this Sanibel Island roof. The rust needs to be cut out and a […]

No Sealant at Flashings

Although flashings bridge transitions in the roof, when not sealed properly they are ineffective. Flashing is designed to turn corners and breaks in a roof, which tend to have more movement than other areas. If not sealed properly, these flashings do little to stop water from entering the roof system. This is allowing water to […]

Valley Metal Buckling

Valley metal is installed by crimping the valley center, fastening the entire length of both edges and then applying mastic to cover the valley metal edge and fasteners. When valley metal is not properly pressed, fastened and/or sealed it causes buckling and waving. Since a valley is designed to channel water between two pitch areas […]

Gable End Flashing Not Correct

Steel metal flashings exposed to the elements can rust over time. Today’s flashings are made of galvanized metal, a process that protects the steel core from rusting. An example of rusted flashings was found on this Marcos Island roof. Rust cannot be simply sealed over, as it will continue to grow. The rust needs to […]

Boot Lapped/Sealed Correctly

As with all rooftop objects it is important that proper water flow and installation are considered. Flashing that is not layered correctly and sealant applied in the right junction areas allow water seepage. The boot flange was not installed correctly with the proper overlap procedure. Sealant has done a good job covering up the installation […]

Vent not Lapped/Sealed Correctly

Valley metal is installed by crimping the valley center, fastening the entire length of both edges and then applying mastic to cover the valley metal edge and fasteners. When valley metal is not properly pressed, fastened and/or sealed it causes buckling and waving. Since a valley is designed to channel water between two pitch areas […]

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